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（1 大連理工大學建設(shè)工程學部， 大連 116024； 2 中核能源科技有限公司， 北京 100193）
［摘要］針對核電廠鋼筋混凝土墻平面內(nèi)抗剪設(shè)計配筋量較大的問題，對鋼筋混凝土墻平面內(nèi)抗剪設(shè)計方法進行了研究；提出了基于單元靜力平衡公式的配筋計算方法及基于優(yōu)化分析的配筋計算方法。研究表明，核電廠混凝土規(guī)范給出的平面內(nèi)抗剪計算公式計算得出的一個單元配筋量是最小的，當鋼筋混凝土墻有限元分析劃分為多個單元時，按規(guī)范公式計算不能得到最經(jīng)濟的配筋；對于有限元分析劃分為多個單元的鋼筋混凝土墻，一個方向配筋按規(guī)范公式計算而另一個方向配筋按單元靜力平衡公式計算時，總配筋量小于兩個方向都按規(guī)范公式計算的情況；如果墻配筋全部單元按靜力平衡公式優(yōu)化計算，總配筋量可進一步減小。
［關(guān)鍵詞］核電廠； 鋼筋混凝土墻； 平面內(nèi)抗剪； 設(shè)計方法
中圖分類號：X946文獻標識碼：A文章編號：1002-848X(2018)16-0059-06
Design method study of in-plane shear resistance of reinforced concrete walls of nuclear power plant
Zhang Nailong1, Sun Yunlun2, Gong Jinxin1
(1 Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China; 2 Chinergy Co., Ltd., Beijing 100193, China)
Abstract:With the concern of over-mount percentage of reinforcement in reinforced concrete of the nuclear power plant, the method of in-plane shear resistance of reinforced concrete walls of nuclear power plant was studied, and the reinforcement calculation method based on the unit static balance formula was proposed as well as the reinforcement calculation method based on optimization analyses. The research shows that the in-plane shear resistance calculation formula given by the nuclear power plant concrete specification is the smallest for a unit of reinforcement. If the finite element analysis of a reinforced concrete wall is divided into multiple units, the most economical reinforcement cannot be obtained according to the specification formula. For reinforced concrete walls divided into multiple units by finite element analysis, one condition is that one direction of reinforcement is calculated according to the normative formula, and the other direction of reinforcement is calculated according to the unit static balance formula. In this condition, the total amount of reinforcement is less than that in the condition where both of two directions of reinforcement are calculated according to the specification formula. If all elements of wall reinforcement are calculated according to the static balance formula, the total amount of reinforcement can be further reduced.
Keywords:nuclear power plant; reinforced concrete wall; in-plane shear resistance; design method
*國家科技重大專項項目（2014ZX06902011）。
作者簡介：張乃龍，碩士研究生，Email: profznl@163.com。
